Python-gevent Module (auto-switch IO-co-process)

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importgeventdeffoo():    print("Running in foo")    gevent.sleep(2)    print("Explicit context switch to foo again")defbar():    print("Explicit context to bar")    gevent.sleep(1)    print("Implicit context switch back to bar")deffunc3():    print("running func3")    gevent.sleep(0)#遇到io就切换，sleep最长2秒，所以整个程序花费两秒，如果是串行需要花费3秒    print("running func3 again")gevent.joinall([    gevent.spawn(foo),#启动一个协程    gevent.spawn(bar),    gevent.spawn(func3)])

Python-gevent Module (auto-switch IO-co-process)